Silo-door hinge.



C. W. VOSS.

SILO DOOR HINGE.

APPLICATION FILED MAR. I0. 1915.

1.215,593. Patented Feb. 13,1917.

2 SHEETS-SHEET I 'C. W. VOSS.

SILO DOOR HINGE.

APPLICATION FILED MAR-10; 1915.

1,215,593. Patented Fb.13,1917.

2 SHEETS-SHEET 2.

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UNITED. STATES CARL w. voss, or MINNEAPOLIS, MINNESOTA.

SILO-DOOR HINGE.

Specification of Letters Patent.

Patented Feb. 13, 1917.

Application filed March 10, 1915. Serial No. 13,352.

To all whom it may concern:

Be it known that I, CARL W. Voss, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented a new and useful Silo-Door Hinge, of which thefollowing is a specification.

My invention relates to improvement in.

a single silo door hinge which has three (3) joints, one a rotaryjointto let the door turn up over the opening and over a 45 degree angle; oneto carry the door to one of the upper corners of the opening, and one tolet the door turn so inside of door is always turned to inside of silo;first, to provide a hinge so the door can be opened by removing enoughensilage to let the door pass the sill; second, to carry the door in anupright position when open; third, so the door can be turned down to oneside of the opening so the operator can pass out and close the door fromoutside of silo.

I attain these objects by the mechanism illustrated in the accompanyingdrawing, in which:

Figure 1, is a side elevation of the entire hinge. Fig. 2, top view ofhinge. Fig. 8, view of part that bolts to door. Fig. 4, view of partthat connects the arm to part on door. Fig. 5, by turning sheet on itsside and with the heading placed at the left and the signature at theright, is a vertical view of the hinge attached to silo door. The dottedlines show the door closed and the movement of door when opening and thefull lines show the door when open.

Similar letters refer to parts throughout the several views.

The bearing A, arm I), bracket C, with bolt or slide'rod and door plateD, constitute the entire hinge to hang a door, making a single doorhinge.

A. is a circular bearing plate. and is I connected to bearing B on arm7), and

(see Figs. 1 and 5.) making'a substantial jointfor arm 1) to carry doorto one side of openmg on the inside of the silo.

The arm 6 is made on' an irregular curve so C will pass under the doorsill and b and O are connected by a boltpassing through the two lugs onC and end of b. The end of Z3 is not as large as the opening between thetwo lugs so the bolt can be used for a slide rod and makmg a joint tokeep the inside of the door to the inside of the silo and with a sliderod to adjust the door when closing.

The bracket C has a circular bearing, and lug 0 attached on one side ofit (see Fig. 4..) and is connected to one side of D. The other side of Dis attached to the door in the center at the top end (see the door canbe tightened with no friction .to C and when G and D are connected itwill lessen the strain to the side of the bolt and place it on the endof the bolt making a vertical joint with stop lugs so the door can beturned up as shown by the dotted lines (see Fig. 5) and carried by thelugs when open as shown by full lines, (see Fig. 5.) The bolts thatconnect the hinge to the silo or door form no part of my invention.

I am aware that prior to my invention sleeves have been applied to otherinventions. I therefore do not claim it so broadly; but

I claim:

In a hinge adapted to be used on a door the combination of a circularbearing plate with a sleeve attached secured to the exterior of the siloat the top of the opening, and an arm with a circular bearing attachedpivotally connected to the plate, permitting the other end of the arm toswing the door from the center of the opening at the top end inwardlyand around to side wall of the silo at the upper corner of the opening,when opening the door, and back to center of the opening when closingthe door, and this end of the arm pivotally connected to the bracket C,with two lugs and slide rod, permitting the inside of the door to bekept to the inside of the silo when opening and closing the door, and

adjusting the door when closing, and the tion by the lugs when open, andwill turn bearing side of bracket 0, with lug 0, atdown and hangsquarely in frontof the 10 tached to one edge pivotally connected toopening when closing.

the door plate D with lug cl, and sleeve attached and the otherside ofdoor plate CARL VOSS' secured to the door in the center at top end,Witnesses:

permitting the door to be turned up over SARA BRENNAN,

the opening and carried in an upright posi- RAY BOYD.

Copies of this patent may be obtained forfive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

